[blood fiya]

That is funny that you had posted a similar question to mine right after me.
As for the problem, i do not have the answers but maybe we can help each other.

What kind of media are you using to burn the games and have you tried burning them on a slower speed. (these solutions did not work for me but i may be worth a try)What version of ps2 do you have? And where are you getting your rips from? Are they from good gaming groups? (kalisto, paradox....)
I have a neo 2.2 with a gameshark 1.6 and a ps2 v.4.
so from what i can see the only similarities we have is the neo 2.2

well good luck, if you come across anything let me know. I'm going to continue looking for answers.